Image Resizer
Resize images by pixels or percentage, keeping aspect ratio.
Files and text are processed locally in your browser. Tools that must reach the network say so explicitly.
About the Image Resizer
Resize any image to exact pixel dimensions or by percentage, with an optional locked aspect ratio so it never distorts. The Toolcenter Image Resizer includes one-click presets for common sizes and exports to PNG, JPG or WebP. Resizing happens in your browser, so the image is never uploaded.
How to use it
- 1Add the image you want to resize.
- 2Choose pixel or percentage mode.
- 3Enter the target width/height, or drag the scale slider.
- 4Pick an output format and download.
Key features
- Resize by pixels or by percentage
- Aspect-ratio lock to avoid stretching
- Presets for Full HD, HD, Instagram and thumbnails
- PNG, JPG and WebP output
- Runs locally — no upload
Frequently asked questions
How do I resize without stretching the image?+
Keep “Lock aspect ratio” enabled. Changing width updates height automatically so proportions stay correct.
Can I make an image larger?+
Yes, but enlarging past the original size softens detail. For upscaling with sharpening, use the Image Upscaler.
Does resizing reduce file size?+
Usually yes — fewer pixels means a smaller file, especially when exporting as JPG or WebP.
Is the image uploaded to resize it?+
No. Resizing uses the browser canvas, so the file stays on your device.
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